Akademik Veri Yönetim Sistemi
COMPUTERS & STRUCTURES, cilt.49, sa.5, ss.807-823, 1993 (SCI-Expanded)
A finite element method was developed to calculate the behavior of an axisymmetric composite body of revolution impacting on an isotropic surface. The composite is made of unidirectional fiber reinforced plies, with no restriction either on the number of plies or on the orientation of the fibers in each ply; hence the laminate may be 'thin' or 'thick', and may be of 'symmetric' or 'unsymmetric' layups. The target may be a semi-infinite body or may be a simply supported or clamped slab. The impact velocity may be zero (static loading) or non-zero with the impactor penetrating the target. A user-friendly computer code AXIMPACT was written which provides the following information: (a) the position of the impactor during impact (including the penetration depth), (b) the stresses and strains in the impactor and the target, (c) the deformations of the impactor and the target, and (d) the failure of the composite impactor and the target. The code was validated by comparing results generated by the code to available analytical and numerical results and to data. In every case the agreement between the present and previous results was excellent.